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stira [4]
2 years ago
12

3. Subtract x)--5x2 + x-2 g(x) = -3x2 + 3x + 9 9

Mathematics
1 answer:
Arada [10]2 years ago
5 0

Step-by-step explanation:

<u>For example: Subtract 4x - 10y + 15z from 5x + 8y - 20z.</u>

Step 1: Arrange the polynomials in standard form. In this example, it is already arranged.

Step 2: Place them horizontally.

(4x - 10y + 15z) - (5x + 8y - 20z)

Step 3: Change the sign of the second polynomial through the parentheses.

4x - 10y + 15z - 5x - 8y + 20z

Step 4: Arrange the like terms together.

4x - 5x - 10y - 8y + 15z + 20z

Step 5: Solve the equation

-x - 18y + 35z

Therefore, when we subtract 4x - 10y + 15z from 5x + 8y - 20z = -x - 18y + 35z.

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A cat chases a mouse. The cat is originally 4 feet behind the mouse, which is running in the same direction along the same route
Darya [45]

The cat will take 0.8 seconds  to catch up with the mouse

Step-by-step explanation:

Given:

The  distance between the cat and the mouse =  4 feet

cat's speed  = 17 feet per second.

mouse's speed =  12 feet per second

To Find:

how long will it take the cat to catch up with the mouse = ?

Solution:

We know that

distance  = speed x  time

Rewriting the equation for time we get

time  =\frac{distance }{speed}

now we know that distance is  4 feet

and the speed is 17 -12 = 5 feet per second

Thus the time is

= \frac{4}{5}

= 0.8 seconds

4 0
3 years ago
What is the solution to this equation ? x + 12 +3x =18 - 2x
olasank [31]

First, you combine like terms: x+3x=4x: 12+4x=18-2x

Second, you add the 2x to each side (inverse operation): 12+6x=18

Third, you subtract 12 from 18 to cancel out the 12 (inverse operation): 6x=6

Fourth, you divide each side by 6 to find the value of x

The answer is x=1

3 0
3 years ago
Read 2 more answers
If y varies directly as x and y = 3 when x = - 9, then find x when y = 5.
Rus_ich [418]

Answer:

d. - 15

Step-by-step explanation:

The equation for direct variation is

y = kx

We know y =3 when x = -9

3 = k(-9)

Divide by -9

3/-9 = -9k/-9

-1/3 = k

The equation is then

y = -1/3 x

We know y = 5

5 = -1/3 x

Multiply each side by -3

-3*5 = -3*-1/3x

-15 = x

3 0
3 years ago
0.05 is 1/10 of what
Gennadij [26K]

Answer:

.5

Step-by-step explanation:

.5 times 1/10 is .05. move the decimal over!

4 0
3 years ago
(-3,-4) with slope 3
Anvisha [2.4K]

Answer:

Do you want me to graph it

Step-by-step explanation:

5 0
4 years ago
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